fold-const.c (native_encode_expr): New function to encode the target representation of an INTEGER_CST...
* fold-const.c (native_encode_expr): New function to encode
the target representation of an INTEGER_CST, REAL_CST, COMPLEX_CST
or VECTOR_CST into a specified buffer.
(native_encode_int): New function.
(native_encode_real): New function.
(native_encode_complex): New function.
(native_encode_vector): New function.
(native_interpret_expr): Inverse of native_encode_expr to convert
a target representation into an INTEGER_CST, REAL_CST etc...
(native_interpret_int): New function.
(native_interpret_real): New function.
(native_interpret_complex): New function.
(native_interpret_vector): New function.
(fold_view_convert_expr): New function to constant fold/evaluate
a VIEW_CONVERT_EXPR of a suitable constant expression.
(fold_unary) <VIEW_CONVERT_EXPR>: Call fold_view_convert_expr.
Change call of build1 to fold_build1 when constructing a
VIEW_CONVERT_EXPR.
* gcc.target/i386/20050113-1.c: Tweak testcase to reflect that casts
of integers to a vector types are now constant expressions in C.
* gcc.dg/vect/vect-fold-1.c: New test case.
From-SVN: r112927
